I suggest you ...

Wishing the viewing of the classic Office 365 within One Drive for Business's modern UI

I've found the location to show the Office 365 within One Drive for Business's modern UI changed into the site viewing. I feel it inconvenient if I experience this behavior because I have a difficulty in accessing the current files shared among Office 365 groups. I am also confused by this sudden issue because I'm not informed in advance of this behavior change within Message Center.So, I hope the public information about this change to be open in advance.